A good doctor is quite extraordinary.
They must attend to the patient's physical health while also fortifying the patient's spirit. And if one is a versatile doctor, not only skilled in both internal and external surgery, proficient in traditional Chinese medicine's diagnostics, but also involved with psychological matters.
Mental illness, shadows left after psychological trauma, mental disease—when encountering patients like these, what is most feared is a situation like Su Lang's.
He is entirely a living dead, ignorant and unaware, numb and unfeeling. Since his spirit refuses to accept or communicate with the outside world, Dong Huiying can only use her imagination, from his numbed appearance and the basic situation she once understood, to "imagine" what he has experienced and speculate where this psychological trauma came from.
